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Heavy-Duty Synthetic Diesel Oil 5W-40

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AMSOIL Heavy-Duty Synthetic Diesel Oil is formulated for hardworking equipment. It is engineered to provide 4X better wear protection1, giving you the edge to keep trucks and equipment operating at peak performance. Heavy-Duty Synthetic Diesel Oil offers outstanding value and provides excellent protection for customers seeking an upgrade over conventional, synthetic-blend or competing synthetic diesel oils.
  • Heavy-Duty Synthetic Diesel Oil 5W-40

    Heavy-Duty Engine ProtectionWear on rings and cylinder liners leads to increased oil consumption and loss of compression, resulting in reduced horsepower and fuel economy. Third-party testing shows AMSOIL Heavy-Duty Synthetic Diesel Oil delivers 4X more wear protection1 to help maximize equipment life and reduce maintenance costs and downtime.

    Viscosity Control

    Formulated with advanced synthetic base oils and detergent/dispersant additives, AMSOIL Heavy-Duty Synthetic Diesel Oil minimizes viscosity change while keeping soot particles suspended independently, helping prevent the formation of larger, wear-causing particles. Lower volatility also helps Heavy-Duty Synthetic Diesel Oil retain its viscosity after high-temperature service for added engine protection and increased fuel economy.

  • Use in diesel engines and, where appropriate, gasoline engines requiring any of the following specifications:
    API CK-4, CJ-4, CI-4+, CFAPI CF-2
    Volvo VDS4.5, VDS4, VDS3
    Mack EOS-4.5, EO-O
    Renault RLD-4, RLD-3
    Cummins CES20086, CES20081
    Caterpillar ECF-2, ECF-3, ECF-1-a
    DDC 93K218, 93K215, 93K214DFS 93K222
    ACEA E9, E7
    MB 228.31
    MAN 3575
    MTU Type 2.1, II, I
    JASO DH-2
    Deutz DQC III-10LA
    Chrysler MS 10902
    Ford WSS-M2C171-F1
  • AMSOIL Heavy-Duty Synthetic Diesel Oil is compatible with other conventional and synthetic oils. Mixing AMSOIL diesel oil with other oils, however, will reduce its performance benefits.Aftermarket oil additives are not recommended for use with AMSOIL synthetic diesel oils.
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